as far as green technologies, i am all for that. not call sequestering or whenever the boondoggle of the day as. we should definitely invest in new technology research to see how we can completely transition off of carbon based fuel without moving on to something dangerous. the decades to come, the centuries to come, without blowing up the biosphere for re couple of decades. both is the answer. [applause] >> response? >> i think it we certainly need to continue research and development. a shameless plug, after your fine examples of endorsing, southern illinois university has a great coal research facility. by increasing resources and development, that is what drives the cost of technology down. the greatest scrubbing technology, because of the infrastructure build up in the river and the ability to ship coal and fuel, scrubbers in and out of the facility. by increasing research and development, doing it in conjunction with a sound, long- term energy policy, we will be able to drive that technology costs down. what is the cheapest wa